Window frame extrusion



FIG. 1 is a perspective view of a window frame extrusion showing our new design; and,

FIG. 2 is an end view thereof.

The broken lines in the drawings illustrate environmental subject matter and form no part of the claimed design.

The window frame extrusion is shown with a symbolic break in its length. The appearance of any portion of the window frame extrusion between the break forms no part of the claimed design. 

CLAIM The ornamental design for a window frame extrusion, as shown and described. 